About Chronic Condition Data Warehouse

The Centers for Medicare & Medicaid Services (CMS) launched the Chronic Conditions Data Warehouse (CCW), a research database, in response to the Medicare Modernization Act of 2003 (MMA). Section 723 of the MMA outlined a plan to improve the quality of care and reduce the cost of care for chronically ill Medicare beneficiaries. In addition to chronic conditions, the CCW supports health policy analysis and other CMS initiatives.

Introduction to CCW: View this Chronic Conditions Data Warehouse informational video to learn how you can access, analyze, and aggregate all the data you need like never before!

The Beneficiary Link

The CCW data are linked by a unique, unidentifiable beneficiary key, which allows researchers to analyze information across the continuum of care.